Change per season in characteristics by international status (coefficient (SE) p for coefficient)
| International (490 observations for 130 players) | Club professional (n=414 observations for 161 players) | |
| Body mass (kg) | +0.483 (0.067)<0.001 | +0.552 (0.088)<0.001 |
| Per cent fat (%) | ā0.316 (0.036)<0.001 | ā0.539 (0.062)<0.001 |
| Muscle mass (kg) | +0.763 (0.070)<0.001 | +1.09 (0.114)<0.001 |
| Maximum speed (m/s) | +0.053 (0.011)<0.001 | +0.077 (0.015)<0.001 |
| Momentum force (kgā m/s) | +10.8 (1.49)<0.001 | +14.0 (2.16)<0.001 |
| Kinetic energy (J) | +68.3 (10.5)<0.001 | +91.4 (14.9)<0.001 |
| Distance covered (m/game) | ā3.65 (11.7)0.7 | +27.3 (16.4) 0.09 |
*n=180 observations for 69 players and 164 observations for 73 players, respectively.